Marcos Alonso’s late goal gave Chelsea a 3-2 win over Arsenal in a frantic encounter in Maurizio Sarri’s first competitive game at Stamford Bridge.

Alonso swept home from close range after being found by sub Eden Hazard, meaning Unai Emery’s Arsenal have lost two from two this season.

There were four goals in a dramatic first half. Pedro (9) and Alvaro Morata (20) capitalised on woeful Arsenal defending to put Chelsea 2-0 up, as both Pierre-Emerick Aubameyang and Henrikh Mkhitaryan missed sitters for the visitors after each goal.

But Arsenal found themselves level at the break through Mkhitaryan’s 20-yard effort (37) and Iwobi’s close-range finish (41), with both sides visibly neglecting their defensive duties.

Arsenal crumbled again late on to allow Chelsea the winner, continuing the Blues’ 100 per cent start in the Premier League under Sarri.